Resistor cabinet and device for verifying circuit breaker
A technology of resistance cabinets and resistors, which is applied in the direction of circuit breaker testing, measuring devices, instruments, etc., can solve the problems of unsuitable circuit breaker calibration work, time-consuming adjustment of resistance, etc., to improve test accuracy and safety, The effect of improving work efficiency
Inactive Publication Date: 2020-03-27
THE PLA NAVY SUBMARINE INST
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[0006] The embodiment of the present disclosure provides a resistance cabinet and a device for calibrating a circuit breaker, so as to solve the problem that the adjustable resistance in the prior art when outputting a large current takes a long time to adjust the current, which is not suitable for calibrating the circuit breaker. technical issues
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[0020] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.
[0021] An embodiment of the present disclosure provides a resistance cabinet, such as figure 1 shown, including:
[0022] The controller 100 is used for receiving control instructions and controlling the output re...
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The invention relates to the technical field of high-current equipment, and discloses a resistor cabinet. The resistor cabinet comprises: a controller which is used for receiving a control instructionand controlling the output resistance of the resistor cabinet; and a variable resistance module including a first resistor array and a first switch array, wherein the first switch array is controlledby a communication signal output by the controller, and the resistance value of the first variable resistance module is controlled by a switching signal output by the controller. According to parameters and performance indexes required by an experiment, a control instruction is output to controller, and the first resistor array and the first switch array are flexibly, automatically and quickly changed according to signals output by the controller, so that quick change of high and low currents required by an experiment can be accurately controlled, an important guarantee is provided for smoothimplementation of a current breaker calibration test, the test precision and safety are improved, and the working efficiency is greatly improved. The invention further discloses a device for verifying a circuit breaker.
Description
technical field [0001] The present application relates to the technical field of high-current equipment, for example, to a resistance cabinet and a device for checking a circuit breaker. Background technique [0002] The circuit breaker is an important protection switch in the ship's power distribution network. Its function is to cut off and connect the load circuit, and cut off the fault circuit to prevent the accident from expanding. [0003] The operating current is large and the time period is large, so it is difficult to accurately control the closing phase; on the other hand, the randomness of the circuit wiring under test results in different loads in each test circuit, and random power factor angles or load angles will cause current aperiodic Components, so that the experimental results are inaccurate and highly dispersed. Therefore, in order to improve the accuracy of the experimental results, it is necessary to accurately carry out phase control, so that the curre...
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IPC IPC(8): G01R31/327
CPCG01R31/3274
Inventor 周智勇孙俊忠张鑫王宗亮蔡巍孙硕吴言凤
Owner THE PLA NAVY SUBMARINE INST